Cleaning device for drawing frames of spinning machines



April 23, 1963 CQRDIS 3,086,255

CLEANING DEVICE FOR DRAWING FRAMES OF SPINNING MACHINES Filed Nov. 15, 1959 2 Sheets-Sheet 1 "we/wok: Hel/muf COM/'5 H. CORDIS April 23, 1963 CLEANING DEVICE FOR DRAWING FRAMES OF SPINNING MACHINES Filed Nov. 15, 1959 2 Sheets-Sheet 2 United States Patent Ofifice 3,086,255 Patented Apr. 23, 1963 3,086,255 CLEANING DEVICE FOR DRAWING FRAMES F SPINNING MACHINES Hellmut Cordis, Monchrain 42, Murrhardt, Germany Filed Nov. 13, 1959, Ser. No. 852,708 7 Claims. (Cl. 19-265) This invention concerns a cleaning device for drawing frames of spinning machines, f.i. of flyers and ring spinning frames having an endless cleaning cloth rotating within a frame and driven by means of a feed drawing roller, f.i. a feed top roller, the driving friction being effected between the feed drawing roller and the cleaning cloth by means of a clamping roller pushing the cloth against the feed drawing roller.

It is a general object of this invention to provide an improved cleaning device for drawing of spinning machines and the like.

It is another more specific object of my invention to provide a cleaning device for drawing frames that can be adapted to different types of spinning machines.

It is a further object of my invention to provide an improved cleaning device wherein the wear of the cleaning cloth is reduced to a minimum.

In accordance with the invention, the clamping roller producing the friction between the feed drawing roller and the cloth for cleaning is arranged between the defleeting links or rollers conducting and reversing the cloth for cleaning. This arrangement produces an important advantage that the drive of the cloth for cleaning and the guide of the cloth for cleaning are separated from each other, whereby the wear and tear of the cloth for cleaning is reduced to a minimum. One of the deflecting links or rollers of the device may be fixed. A brake rod for braking somewhat the running of the slack cleaning cloth with respect to the running of the drawing top roller driving the cleaning cloth is preferably mounted on the frame and abuts against the cleaning cloth that is running through the device.

The distance of the clamping roller, or clamping rollers, with respect to the deflecting links may be made adjustable by having the pivot supporting pins thereof rest in one of a plurality of pairs of slots located in the frame supporting the clamping roller and the deflecting rollers or links.

In an other embodiment of the invention, the aforesaid distance is made adjustable by having the clamping roller bedded in slides having noses which are supported in one pair of a plurality of pairs of notches in the top edges of the longitudinal legs of the frame. The pivot pins of the clamping rollers may also be axially equipped with springs. Furthermore, it has been found to be advantageous to support the clamping roller on the shaft of the feed top roller.

The novel features which are considered as characteristic for this invention are set forth in particular in the appended claims. This invention itself, however, both as to construction and its method of operation, together with additional objects and advantages, thereof, will be best understood from the following description of two specific embodiments when read in connection with the accompanying drawing in which:

FIG. 1 shows a device in longitudinal section and FIG. 2 a support of the clamping roller of this device in cross section;

FIG. 3 shows a side-view of the clamping roller support;

FIG. 4 shows a modified clamping roller support in side-view, and

FIG. 5 shows the cross section according to line A-A of FIG. 4;

FIG. 6 illustrates a side-view of a modification of the device;

FIG. 7 shows the cross section according to line B-B of FIG. 6;

FIG. 8 shows the cross section according to line CC of FIG. 6;

FIG. 9 is the perspective view of a support slide of a clamping roller support;

FIG. 10 shows a modified roll cleaning device in longitudinal section;

FIG. ll shows a modified clamping roller support in cross section;

FIG. 12 shows another modified arrangement, wherein the frame of the cleaning device is supported on a machine base-part; and

FIG. 13 shows a modified roll cleaning device in longitudinal section, wherein the frame of the roll cleaning device is supported on a base part of a spinning machine.

Referring now specifically to the drawings:

The drawing frame illustrated in FIG. 1 has the feed drawing frame roller E and additional drawing frame rollers F mounted thereon. Opposite thereto, a feed top roller G and additional top rollers H are mounted in the frame of the spinning machine. The rollers G and H press onto the card sliver. The cleaning device comprises a frame formed by two longitudinal legs 1 and the transverse legs 2, as well as the cleaning cloth 3, deflecting links and rollers 5 and 6 and clamping rollers 19. A drawing frame having a pair of bolts 4 (one of each is illustrated in the cross-sectional views of FIGURES l, 6, l0 and 13) pivotably supports the frame of the cleaning device forming part of this invention. Each one of the illustrated bolts 4 projects into longitudinal holes 4a located in each leg 1 of the pair of legs of the frame of the cleaning device. Once the cleaning device has been pivoted about bolts 4 into a position overlying the top rollers G and H, the position of the cleaning device on top of the drawing frame can be adjusted by slidably moving the frame with respect to the bolts 4 along the longitudinal holes 4a.

The cleaning device according to FIGS. 1 and 2, includes a rotating deflecting roller 5 made of wood, a wooden stationary deflecting guide 6 and the wooden brake rod 7. The deflecting link 6 is swivelably supported by the bolt 8 of the transverse leg 9 to permit minor adjustment thereof for positioning in proper alignment with roller H. A metallic rotating clamping roller 10 presses against the cleaning cloth 3 and towards the feed top roller G, which is driven by the feed drawing roller E, so that the clamping action of parts G and 10 causes the frictional drive of the cleaning cloth 3. The clamping roller 10 is supported on pivots 11 which are axially outwardly spring biased by the springs 12, so that the clamping roller can be adjusted in the direction X by selecting as supports a pair of the plurality of pairs of holes 13. According to FIG. 3, some of the pairs of holes 13 are slot-shaped. This provision of the longitudinally spaced holes 13 permits adjustment of the position of roller 10- in relationship to roller G and also permits the device to be employed on machines when the draw frame roller spacings vary so that the roller 10 may be always aligned over the driving set.

FIGS. 4 and 5 show a modified clamping roller support comprising a slide 14 of spring sheet metal and a support piece 15. The slide 14 has a nose portion 14a adapted to rest in one of the notches 15a located in the top edge of the longitudinal leg 1 of the frame of the cleaning device (see FIG. 10). This arrangement permits the adjustment in the direction X of the distance between the clamping roller or rollers and the deflecting links.

According to the embodiment of FIGS. 6 to 9, the

wooden deflecting link 16 is rotatably supported in the two longitudinal legs 1. The two support pieces 17 for the clamping roller are L-shaped. Each of the legs 1 of the roll cleaning device is provided with two slots 18 and 19 adapted to respectively slidingly receive a screw 21 and the longitudinal leg of the support of the L-shaped support 17. In addition thereto, the slot 18 is provided with two depressions 20 for the head of the screw 21 (only one of the two depressions is shown in FIGURE 6, the other is covered by the screw head of screw 21), so that two adjustments may be given to the L-shaped support piece 17.

FIG. 10 shows a device with two clamping rollers 10, 22. The frame of the roll cleaning device is supported by the angles 23 which rest on the load arms 24. The weight of the roll cleaning device is, therefore, supported, as illustrated in this arrangement, by the angle 23 and also by the clamping rollers 10, 22 by means of the slide 14.

In FIG. 11, a modified version of the support for the clamping roller 10 is illustrated. A support piece 26 is therein provided with a vertical slot 26a adapted to slidingly receive a screw 27, whereby the support piece can be vertically adjusted.

In FIG. 12 the connection between the roll cleaning device and the spinning machine is illustrated. The angle 23 forms part of the longitudinal leg 1 and is supported on the load arm 24 of the frame of the spinning machine by means of the set screw 25.

Finally, FIG. 13 shows a modified version of the roll cleaning device forming part of my invention, wherein the clamping portion of the device comprises three clamping rollers 10, 22 and 28.

Although the present invention has been described in conjunction with preferred embodiments, it is understood that modifications and variations may be resorted to without departing from the spirit and scope of this invention, as those skilled in the art will readily understand. Such modifications and variations are considered to be within the purview and scope of the invention and appended claims.

I claim:

1. In a drawing frame including a plurality of pairs of cooperable upper and lower drawing rollers arranged in a mating fashion along a feed path including at least one driving roller pair, the improvement comprising a cleaning device including a supporting frame disposed above said drawing rollers, first and second guiding means disposed adjacent opposite respective ends of said frame, at least one of said guiding means being in spaced relationship with respect to said upper drawing rollers, endless cleaning belt means including an upper and lower run trained to run around said guiding means, clamping roller means rotatably supported on said frame between the first and second guiding means and opposite said driving roller pair in a position overlying the lower run of said cleaning belt means, said frame being supported above said pairs of drawing rollers in a manner to press said clamping roller means against said cleaning belt means and the upper roller of said driving roller pair to cause frictional drive of said cleaning belt means.

2. The roll cleaning device, as set forth in claim 1, including a brake rod secured to said frame transversely to the movement of said cleaning belt means, said brake rod abutting against said cleaning belt means and thereby slowing the movement thereof.

3. The roll cleaning device, as set forth in claim 1, wherein said frame comprises two support members mounted transversely to the axis of said clamping roller means, each of said two support members having a plurality of notches at its upper edge portion, said clamping roller means having an axial pivotal support at each end thereof, each of said pivotal supports having a nose portion adapted to engage and be supported by said upper edge portion of one of said two support members of said frame at one of said plurality of notches.

4. The roll cleaning device, as set forth in claim 1, wherein said clamping roller means include spring-biased pivot pins axially projecting from each end thereof, said pivot pins being rotatably supported by said frame.

5. The roll cleaning device, as set forth in claim 1, wherein said frame comprises two support members mounted transversely to the axis of said clamping roller means, each of said support members having a plurality of openings, said clamping roller means having springbiased support pins axially projecting from each end thereof, each of said support pins projecting through one of said plurality of openings of said support member.

6. The roll cleaning device, as set forth in claim 5, wherein at least one of said plurality of openings is slotshaped, the remainder thereof being circular.

7. The roll cleaning device, as set forth in claim I, wherein said clamping roller means comprise a plurality of rollers rotatably mounted in said frame transversely to said endless cleaning belt means.

References Cited in the file of this patent UNITED STATES PATENTS 2,735,142 Noiles Feb. 21, 1958 FOREIGN PATENTS 19,730 Great Britain of 1893 

1. IN A DRAWING FRAME INCLUDING A PLURALITY OF PAIRS OF COOPERABLE UPPER AND LOWER DRAWING ROLLERS ARRANGED IN A MATING FASHION ALONG A FEED PATH INCLUDING AT LEAST ONE DRIVING ROLLER PAIR, THE IMPROVEMENT COMPRISING A CLEANING DEVICE INCLUDING A SUPPORTING FRAME DISPOSED ABOVE SAID DRAWING ROLLERS, FIRST AND SECOND GUIDING MEANS DISPOSED ADJACENT OPPOSITE RESPECTIVE ENDS OF SAID FRAME, AT LEAST ONE OF SAID GUIDING MEANS BEING IN SPACED RELATIONSHIP WITH RESPECT TO SAID UPPER DRAWING ROLLERS, ENDLESS CLEANING BELT MEANS INCLUDING AN UPPER AND LOWER RUN TRAINED TO RUN AROUND SAID GUIDING MEANS, CLAMPING ROLLER MEANS ROTATABLY SUPPORTED ON SAID FRAME BETWEEN THE FIRST AND SECOND GUIDING MEANS AND OPPOSITE SAID DRIVING ROLLER 